Examine the scratch to determine its depth. Any scratch 1/8 inch deep or less can be handled on the spot. Consult a professional for help removing deeper scratches.
Clean the table with a moist, lint-free cloth or paper towel to remove dust and dirt.
Apply a quarter-sized amount of jeweler's rouge to the polishing pad. Jeweler's rouge is a type of iron-oxide powder, called ferric oxide, that is combined with a wax or grease binder. The compound is used to buff precious metals like gold and silver, as well as glass lenses, to a high shine. Apply non-gel whitening toothpaste in lieu of jeweler's rouge.
Put on safety goggles and a particle mask. Rub the polishing pad over the scratch by hand or with an electric buffer, using light to moderate pressure.
Mix the 1/2 oz. of ammonia with the 2 cups of warm water in the spray bottle. Spray the ammonia solution onto the recently buffed area. Wipe the solution off with a lint-free cloth or paper towel.
Examine the buffed area. Repeat Steps 2 through 5 once or twice if the scratch is still visible.